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2005 g35 sedan "rev up" oil consumption

Guys,
I am about to lose my mind here, my car burns 1 quart of oil every month!! I took it to the dealer twice and they did the oil consumption test and guess what it didn't burn any oil when the tests were performed really weird! I found out they use Mobil oil so i used the same and to my surprise it started to burn the oil again so now one thing comes to mind did they put an additive in the oil to prevent the engine from burning it????I am really frustrated with this i have to check my oil every week and add. WTFFFF.Does anyone know what the additive is?? Oil is expensive!!

Some folks have gotten new engines based on excessive consumption..
Maybe they are getting tougher on it....

document your oil addtions and bring them to the dealer.

If your oil consumption is excessive they will eventually find it.

Since you ask if there is a"trick" to lower oil consumption, yes there is.
you can use a thicker oil .
Most Mobil 1 weights that are designated as a xw-30 ( such as 5w-30 etc) are on the thin side and hence more prone ot leakage.

a 0w-40 Mobil 1 or a valvoline Durablend in 10w-40 will leak less ( and the durablend is cheaper than the mobil1

Fred..

"In the end we all just play the roles given us... Sometimes they dont fit so well,... but I guess we make do."

it doesnt hurt to bring it to the dealer (again) if you brought it to them before the warranty expired because then it will have been documented history as a warranty issue before it expired.

If you are out of warranty. There is one more trick left.

Go to a high milage formulation for the oil while sticking with a 10w-40.
High milage formulations include seal swellers and in some engines will reduce consumption (tho its along shot since in the HR the cause is usually loose rings)

Fred

"In the end we all just play the roles given us... Sometimes they dont fit so well,... but I guess we make do."

My warranty is up. I took it to the dealer three times did the consumption test and passed smh. I don't get it....but i love this car alot and i will most likely have to rebuild the engine in a year or two depending on how bad it gets. I will try that High Mileage oil when i am due for an oil change, its worth a shot. My G has about 71000 miles on it.

From the best we can determine at the dealer, the issues with oil consumption on the 05-07 M/T g35's has to do with the piston rings allowing oil to be pulled past the rings on higher RPM decel while in gear. These engines have an exhaust valve retarder that may be creating more vacuum inside the cylinders off throttle. This has not been directly confirmed but is our best guess from what we know.

Unfortunately we haven't messed around too much with changing oil viscosities. I'm assuming that the replacement engines that we have installed have an updated ring setup that either has more tension against the cylinder walls or and updated design to keep the rings seated against the walls to prevent the oil from being pulled past the rings. If we do any of these oil consumption cars now they only send us a short block for repairs. I'm sure that a thicker oil may help but in the end you are simply dealing with a high pressure differential between the crankcase and the combustion chamber.